Citazione Stile APA (7a Edizione)

Wright, R. T., & Nebel, B. J. (2002). Environmental science: Toward a sustainable future (Eighth edition.). Pearson Education.

Citazione stile Chigago Style (17a edizione)

Wright, Richard T., e Bernard J. Nebel. Environmental Science: Toward a Sustainable Future. Eighth edition. Upper Saddle River, New Jersey: Pearson Education, 2002.

Citatione MLA (9a ed.)

Wright, Richard T., e Bernard J. Nebel. Environmental Science: Toward a Sustainable Future. Eighth edition. Pearson Education, 2002.